US PATENT SUBCLASS 508 / 492
.~.~.~.~.~ Polycarboxylic acid esterifies polyhydroxy alcohol


Current as of: June, 1999
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508 /   HD   SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS

110  DF  LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53}
459  DF  .~ Organic -C(=O)O- compound {19}
463  DF  .~.~ Specified compound wherein the single bonded oxygen is bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon (i.e., specified carboxylic acid ester) {6}
465  DF  .~.~.~ Plural -C(=O)O- groups attached directly or indirectly to each other by nonionic bonding (e.g., estolides of hydroxy carboxylic acids, etc.) {8}
485  DF  .~.~.~.~ Esterified alcohol is polyhydroxy alcohol (e.g., pentaerythritol tetraalkanoate, etc.) {3}
492.~.~.~.~.~ Polycarboxylic acid esterifies polyhydroxy alcohol {2}
493  DF  .~.~.~.~.~.~> With organic non-carboxylic acid ester chalcogen compound, nitrogen compound, or halogen compound
494  DF  .~.~.~.~.~.~> Ether or thioether chalcogen attached indirectly to the -C(=O)O- groups (e.g., polyethyleneglycol esters, etc.)


DEFINITION

Classification: 508/492

Polycarboxylic acid esterifies polyhydroxy alcohol:

(under subclass 485) Compositions wherein the specified carboxylic acid ester is formed by the esterification of a polyhydroxy alcohol with a polycarboxylic acid.

(1) Note. An example of a component provided for herein is:

C18H35[end subscrpt]OOCC2H4[end subscrpt]COOC2H4[end subscrpt]OOCC2H4[end subscrpt]COOH